Match Index - Used Laboratory Equipment and New Lab Instrument Supplies, UK

Spectral Match Index

To confirm the identity of the sixteen separated peaks shown in the fast separation, known reference standards were injected and eluted under the same conditions as the sample mixture.

Comparison of spectra and retention times allows positive identification of all the components.

The screen display shown here illustrates the process showing a reference library spectrum which is overlayed on peak 8 in the chromatogram of the sixteen component mixture.

Applying the mathematical routine for spectral match, or similarity, to the data for the sample and library spectra shown here, produced a match index of 996.5, which is displayed on the screen.

A figure greater than 990 indicates a good degree of match, and a figure above about 900 indicates some degree of match.

A figure between about 50 and 100 indicates very little match.